2008 Arctic Cat ATVs factory service and repair manual, Page 218Get this manual
Servicing Va lveswalve Guideswalve Seats
If valves, valve guides, or valve seats require servicing or replacement, Arctic Cat recommends that the components be taken to qualified machine shop for servicing
Towards
A CAUTION
If valves are discolored or pitted or if the seating surface is worn, the valve must be replacedDo not attempt to grind the valves or severe engine damage may occur